Crows are so successful at survival because of their high intelligence and ability to learn from each other. Hacker/writer Joshua Klein explores whether crows could be trained to pick up garbage or other useful tasks.

This Oxford University experiment shows that New Caledonian crows are even more intelligent than previously thought. In the video a crow is shown using three tools in the right sequence to achieve an objective, without prior training.

Bonobos can walk upright, understand spoken language, write and develop stone tools. Savage-Rumbaugh's work with bonobos forces us to rethink how much of what a species can do is determined by biology and how much by cultural exposure.

Elephants can paint - this video is proof of that. However, according to naturalist Desmond Morris, it is actually the elephant trainer that provides the directions. The trainer tugs at the elephant's ears to move the paint brush in different directions.